Auxiliary air-inlet valve.



J. A. MILLER.

AUXILIARY AIR INLET VALVE. APPLIQATIQH FILED JULY 16, 1912.

Patented June 10,1913.

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UNITED STATES PATENT JOHN A. MILLER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO MOTOR CAR EQUIP- MENT REPAIRS COMPANY, INC.,

OF LOS ANGELES, CALIFORNIA.

AUXILIARY AIR-INLET VALVE.

Specification of Letters Patent.

Patented June 10, 1913.

To all whom it may concern:

Be it known that I, JOHN A. MILLER, a citizen of the United States, residing at Los Angeles, county of Los Angeles, State of California, have invented new and useful Improvements in Auxiliary Air-Inlet Valves, of which the following is a specification.

This invention relates to a device for supplying automobile eiigines with auxiliary air independent of the carbureter action; and the invention has to do particularly with a simple and eflicicnt device whereby a graduated amount of air may be admitted to the engine cylinders so as to supply to those cylinders a proper mixture for the mostperfect combustion.

' In its most approved form, my invention embodies a sliding piston valve combination on the engine intake'pipe, preferably directly above the carburetor, a Bowden wire through the medium of which the piston is operated, and a sector and lever device on the steering post directly under the steering wheel, the arrangement being such that a movement of the lever'will move the piston of the valve longitudinally to open and close the port admitting air into the intake 1 e. i egdily apparent in the following specificatic-n, taken in connection with the accompanying drawings, in which;

Figure 1 is a general elevation showing the application of my improved auxiliary air valve to an automobile. Fig. 2is a detail elevation of the parts of the apparatus mounted on the automobile steering post.

Fig. 3 is a cross section taken as indicated by line 3-3 of Fig.' 1 and illustratingin detail the piston valve and its connections to the intake pipe. Fig. is a sect-ion taken -on line 44 of Fig. 3. Fig. 5 is an enlarged sectiona detail showing the sector and lever mounte on the steering post, said section taken as indicatedby line 55 of Fig. 2.

In the drawings 5 designates the engine of any typical automobile, 6 the intake pipe thereof, 7 the carbureter, 8 the throttle valve on the carbureter, and 9 the steering post of the automobile. Attached directly to the steering post 9 I have shown a suitable sector 10, preferably attached to the steeriii post by any suitable clamp -11. Over t is sector a small hand lever 12 is These features will become more adapted to be operated. A Bowden wire 13 connects directly with .the lever and extends through a flexible casing 14 to the auxiliary air valve 15. This auxiliary air valve comprises an open ended cylinder 16 in which a piston valve 17 is adapted to be reciprocated by the longitudinal movement of the wire 13. The piston in its travel is adapted to cover and uncover an elongate, port 18, th s port leading directly to the interior of the intake pipe 6. The valve cylinder 16 is mounted directly on thejntake pipe as is shown in the drawings. The air inlet to giylinder 16 is at the open end of the cyliner, vided with a suitable screen 19 held in place by a suitable ring 20, and making the entire end 'of the cylinder open in the manner specified and controlling the amount of air admitted only at one point-{the valve covered portconduces to a thorough mixture in that the air-is freely admitted 'in any quantity desired.

this end of the cylinder being pro-'" The port 18 being comparatively long, it 1 the engine suction holds the piston tightly againstits scataround the port to prevent any air leakage into the ,intake pipe. No dust or foreign matter can enter the cylinder or the intake pipe, screen 19 cleaning the air of dust or other objectionable matter. The relation of the dustscreen to the cylinder and piston and the inlet portis With the screen at the point important. where the air first enters the apparatus there is no possibility of dust working into the cylinder and piston and wearing them out. It will also be seen that the operation of the auxilia valve is simple and eas the lever 12 being merely pulled upward y to allow air to enter the intake pipe, and being pushed downwardly to cutoti that air. When the automobile engine is first started the auxiliary valve remainsclosed;

after the engine has warmed up and op crating under normal conditions, the aria;- iliary air vii'lve is opened slightly to increase the amount of air fed to the eyhnfit (lers. This has the elleet of keeping the (ler open at (int: enrl ninl ninnnte'l npnn an engine intuhe pipe, tlnre heing n purl lwnling 't'rnin the interinr ml the (zyliinlcr tn the interior ml the intake pipe. Stll l purl heing relatively lung in it ilireetinn parallel to the axis 01" the cylinder unil living: relutively narrow in :1 (lireetiun trunfivers'e to the axis of the cylinder, u srreen ov r the 017611 and of the cylimler, :1 pistun slnluhle in said eyliinler and :nlapterl tn mn'er and uncover the saiil pnrt therein, and nnnnmlly npemhle means: tn more snid piston lnngi tuclinally oi? the cylinder.

2. In a (lCVltlQ of the character (lewriheth an auxiliary air valve COHlPI'iSlnQ; a cylin- (ler open :it one end and mounted upon an engine intake pipe, there being 21 port hei'uh ing front the int *rior of the cylinder near its (:pen (lltl to the interior (rt, the intake pipe, :1 (lust sereen over the upon enilnt the evlimh-r, :1 pist'nn in the rylinrlcr mm'nhle t0 the tll l tllcltflf (apposite, the Stl'QtHttl 0nd tn nnem'er the pert flhtl open the space. in the f \'lll\tll,1' (lirertly hetween the screened einl and the pnrt nnrl means fur reeipriteah (lay mt July, 1912.

JOHN A. MILLER.

L. IQ. 

